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| Number | Title | Issue Date |
| 8151475 | North finding device, system and method A device includes: a gyroscope adapted to be mounted to a goniometer, wherein a sensitivity axis of the gyroscope is substantially perpendicular to a rotation axis of the goniometer, wherein the goniometer is adapted to provide at least a first goniometer azimuth re... | 04/10/2012 |
| 8061048 | Apparatus for azimuth measurements using gyro sensors An apparatus for azimuth measurements is provided. The apparatus comprises a housing and a plurality of gyro sensors aligned in the housing. Each of the plurality of gyro sensors has an input axis for angular velocity measurements. There is provided a drive unit for... | 11/22/2011 |
| 7712223 | Apparatus for azimuth measurements using gyro sensors An apparatus for azimuth measurements comprises an elongated housing, a plurality of gyro sensors, each of the gyro sensors having an input axis for angular velocity measurements, spherical sensor holders arranged along the longitudinal direction of the housing, at ... | 05/11/2010 |
| 7433795 | Tm method for controlling dynamic apparatus and apparatus thereof Provided is a method and apparatus for controlling the precision of the rotation angle of a rotation of a dynamic apparatus, including the step of determining a conversion factor of a gyroscope installed in the dynamic apparatus to control the rotary movement to be ... | 10/07/2008 |
| 7412775 | Gyroscope north seeker system and method A sensor system and method for determining a relative direction to true north is provided. The system comprises at least one angular rate sensor, such as a MEMS sensor, which has an input axis and a rotation axis. The sensor comprises a motor drive structure, a moto... | 08/19/2008 |
| 7401495 | Activity monitoring An activity monitor is provided that corrects for the effects of motion external to the entity being monitored. For example, the activity monitor can overcome the effects of vehicular travel. ... | 07/22/2008 |
| 7350303 | Level, angle and distance measuring device The portable self-contained horizontal and vertical level, angle and distance measuring device is suitable for indicating whether or when two or more points are level with each other and for measuring distances and angles between two or more points, a point and a li... | 04/01/2008 |
| 7249488 | Method for detecting a zero-point error of a coriolis gyroscope and coriolis gyroscope using said method In a method for determining the zero-point error of a Coriolis gyro, the resonator of the Coriolis gyro has a disturbance force applied to it such that a change in the stimulation oscillation of the resonator is brought about. A change in the read oscillation of the... | 07/31/2007 |
| 7246512 | Method for determining a zero-point error in a vibratory gyroscope A method for determination of the zero error of a Coriolis gyro. Appropriate disturbance forces are applied to the resonator of the Coriolis gyro such that at least one natural oscillation of the resonator is stimulated that differs from the stimulating and read osc... | 07/24/2007 |
| 7228739 | Precision flexure plate A precision flexure plate includes a flat disk positioned between two capacitor plates and supported by S-shaped beams. Deflection of the disk due to gravitational loads and resulting capacitance change is used to measure the accelerations in the direction perpendic... | 06/12/2007 |
| 7124634 | Single plate capacitive acceleration derivative detector A capacitance accelerometer includes a housing, and a plate fixed within the housing. A moveable plate is disposed in substantially parallel relation to the fixed plate and is coupled to the housing along at least an edge. The moveable plate and the fixed plate defi... | 10/24/2006 |
| 7100289 | Microelectronic vehicle service system sensor Compact and robust sensors for utilization with vehicle wheel alignment angle sensor units and vehicle service devices. The sensors incorporate one or more micro-electromechanical devices configured to measure movement and/or orientation of the sensor about one or m... | 09/05/2006 |
| 7065888 | Gyroscopic system for boresighting equipment A gyroscopic system for translating parallel and non-parallel lines between a reference line and a device to be aligned with respect to the reference line is provided. The system includes a first inertial sensor configured to be substantially stationary, the first i... | 06/27/2006 |
| 6981333 | Ergonomic, interference signal-reducing position measurement probe for mutual alignment of bodies An ergonomically equipped and interference signal-reducing position measurement probe for mutual alignment of bodies has a speech input device and/or a speech output device. The probe is wirelessly linked to an external control or a higher-level supervisory computer... | 01/03/2006 |
| 6966120 | Process and measurement device for determining the alignment of a cylindrical body A process for determining the alignment of a cylindrical body with respect to a reference direction by means of a measurement device which has a first and a second attachment area and a position measurement probe which is calibrated to the reference direction and is... | 11/22/2005 |
| 6965397 | Measuring camera attitude A system is disclosed for using camera attitude sensors with a camera. A camera assembly includes a tripod base, a tripod head interface mounted on the tripod base, a tripod head mounted on the tripod head interface and a camera mounted on the tripod head. The tripo... | 11/15/2005 |
| 6915584 | Compass with electromagnetic half-shell transformer energy transmission and optoelectronic data signal transmission The invention concerns a compass having an electro magnetic half-shell transformer energy transmission and opto electronic data transmission. To avoid a slipring connection during the transfer of supply voltage at least one winding on the primary half-shell is conne... | 07/12/2005 |
| 6880258 | Digital inclinometer and related methods An inclinometer for measuring the angle between a reference angular position and an angularly adjustable surface, such as on the control surfaces of a model aircraft. In one form, the inclinometer has a beam and a pair of opposed arms attached to the beam with cente... | 04/19/2005 |
| 6792685 | Stabilized laser plumb A laser plumb includes a laser, and a mass that is rotatable about a spin axis to stabilize the laser. The mass is mounted to a support to be pivotable about at least one axis, and preferably two axes. The two axes are perpendicular to each other and the spin axis. ... | 09/21/2004 |
| 6621245 | System for the stabilization of an object mounted on a moving platform A calculation system for calculating the control signals which are designed to perform a frequency-dependent weighting of the angular velocity signals and the angular position signals. The angular velocity indicators are preferably used for stabilization ... | 09/16/2003 |
| 6594911 | Long-term navigation method and device Using an inertial master box mounted on a carrier for measuring its movements with respect to a geographic frame of reference of fixed directions along three axes Xg, Yg, Zg, a measuring method provides for continuously measuring an orientation of a frame... | 07/22/2003 |
| 6354011 | Orientation measuring device An orientation measuring device with a plurality of precision tooled grooves, indentations or the like. Two precision tooled adaptor bodies, preferably of cylindrical shape, are removably mountable in the indentations, where appropriate, for a given measu... | 03/12/2002 |
| 6351092 | System for the stabilization of an object mounted on a moving platform A calculation system for calculating the control signals which are designed to perform a frequency-dependent weighting of the angular velocity signals and the angular position signals. The angular velocity indicators are preferably used for stabilization ... | 02/26/2002 |
| 6338199 | Sensor A sensor includes a plurality of weight portions which swivel, support parts each of which supports at one end a corresponding one of the plurality of weight portions in the same direction, and a driving part which supplies driving power to the support pa... | 01/15/2002 |
| 6049989 | Three-dimensional homologous surveying method and the related instrument A three-dimensional homologous surveying instrument includes a base with an outer spherical shell mounted thereon for receiving therein a ring-shaped shell holder, an intermediate spherical shell and an inner spherical shell with respective zero reference... | 04/18/2000 |
| 5974675 | Navigation unit A navigation unit having a gyro sensor mounted thereon. The unit includes a mounting mechanism for changing the mounting direction of the gyro sensor so that the rotation detecting axis of the gyro sensor may be vertical, i.e. normal to a vehicle. In one ... | 11/02/1999 |
| 5778543 | Inertial sensor unit An inertial sensor unit for determining north, has a housing and a positioning gimbal rotatably mounted in this housing about a substantially vertical axis. A releasable, cooperating detent mechanism defines three fixed angular detent positions of the pos... | 07/14/1998 |
| 5747997 | Spin-valve magnetoresistance sensor having minimal hysteresis problems The present invention provides a method and apparatus for utilizing spin valve magnetoresistance devices for the measurement of weak magnetic fields. The magnetoresistive element consists of a pinned ferromagnetic layer and a soft ferromagnetic layer sepa... | 05/05/1998 |
| 5699256 | Offset-drift correcting device for gyro-sensor An offset-drift correcting device is designed for a gyro-sensor mounted on an object and outputting a signal representing an angular speed of the object. The device includes a first section for detecting whether or not the object is rotating. A second sec... | 12/16/1997 |
| 5682335 | Method and device for simultaneous identification and correction of errors in the measurements of a magnetometer The present invention relates to a method and a device for correcting measurement errors of a magnetometer mounted on a vehicle. According to the method, a theoretical corrective model is defined in accordance with the following equation: ##EQU1## ... | 10/28/1997 |
| 5408751 | High resolution gyro system for precise angular measurement The system includes for planar angular measurements a gyro--preferably a laser gyro--and an angle encoder mounted with their sensitive axes coaxially on a turntable shaft, which is rotatably mounted in a case and driven at constant speed with respect to s... | 04/25/1995 |
| 5375336 | Gyro-compass A support base of an angular velocity sensor is supported rotatably at one end, and the support base is vibrated by a piezoelectric element. By this vibration, a known rotational angular velocity is applied to the angular velocity sensor. For example, a d... | 12/27/1994 |
| 5331578 | Procedure for measuring angles and trajectories by means of gyros and inertial systems The calibration of time-depending measurement uncertainties of gyros and inertial systems by the differences of angular and/or velocity and/or positional measurements which are carried out and repetitiously executed with a view to undetermined reference d... | 07/19/1994 |
| 5272922 | Vibrating element angular rate sensor system and north seeking gyroscope embodiment thereof An angular rate sensor system preferably comprising closely spaced vibrating drive and sensing elements in a paired tuning fork configuration mounted to rotate about a rotational axis oriented perpendicular to the sensitive axes. The rotational drive asse... | 12/28/1993 |
| 5060392 | North finding system A gyrocompassing system intended for land based equipment requiring north reference information includes a novel gyrocompass implementation which enables utilization of high grade inertial sensors while achieving the desired goal of moderate cost. The nor... | 10/29/1991 |
| 5060175 | Measurement and control system for scanning sensors A sensor may be scanned relative to any arbitrarily selected reference coordinate system by the use of a system including an attitude determination unit, attitude control unit, inertial measurement unit, navigation unit, and a scan generation unit. Method... | 10/22/1991 |
| 4945647 | North finding system A gyrocompassing system intended for land based equipment requiring north reference information includes a novel gyrocompass implementation which enables utilization of high grade inertial sensors while achieving the desired goal of moderate cost. The nor... | 08/07/1990 |
| 4914291 | Gimbal angle detector An apparatus for detecting deflection of the spin axis of a gimbal supported spinning mass relative to the gimbal axis comprises four equally spaced linear arrays of detector elements mounted around the gimbal axis and extending parallel to that axis. Fou... | 04/03/1990 |
| 4845856 | Method and apparatus for aligning equipment on board a carrier vehicle and particularly on board an aircraft A method for aligning pieces of equipment on board a vehicle, particularly on board an aircraft is disclosed. The method assumes the use of at least one computer on board the vehicle working in connection with the pieces of equipment. Under this method: a... | 07/11/1989 |
| 4807138 | Device for determining the north direction The north direction shall be determined by a carrier fixed two-axis rate gyro having a substantially vertical spin axis from the two components of the horizontal component of the rotary speed of the earth. Deviations of the position of the rate gyro from ... | 02/21/1989 |
